Machine for relatively moving shoes and their lasts



MayB, 1932. A. F. PYM 1,856,291

MACHINE FOR RELATIVELY MOVING SHOES AND THEIR LASTS Original Filed July 24. i926 7 Sheets-Sheet 2 ,200 2 g4 C 136\136 A E f1 imp 160" Jim/f May 3, 1932; A. F PYM 1,856,291

MACHINE FOR RELATIVELY MOVING SHOES AND THEIR LASTS Original Filed July 24, 1926 Sheets-Sheet 5 W//////il May 3, 1932. A. F. PYM 1,856,291

MACHINE FOR RELATIVELY MOVING SHOES AND THEIR LASTS Original Filed July 24, 1926 '7 Sheets-Sheet 4 Fig. 9.

May 3, 1932. A. F. PYM 1,856,291

MACHINE FOR RELATIVELY MOVING SHOES AND THEIR LASTS Original Filed July 24, 1926 '7 Sheets-Sheet 5 66 i H 6'0 6 277 L248 L: 270 92 E3 ii! d w M 8 ILL, I 1 22 9/ 62 ii 48 472 Y g 0 460 we 4w 1 452 356 l J4 I May 3, 1932. A. F. PYM 1,856,291

MACHINE FOR RELATIVELY MOVING SHOES AND THEIR LASTS Original Filed July 24, 1926 7 Sheets-$heet 6 //Vl/ENTUR May 3, 1932.. A. F. PYM 1,856,291

MACHINE FOR RELATIVELY MOVING SHOES AND THEIR LASTS Original Filed July 24, 1926 7 Sheets-Sheet '7 Patented May 3, 1932 UNITED STATES PATENT OFFICE ARTHUR F. PYM, F SWAMPSCOTT, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE IYIACI'IINERY CORPORATEON, O13 PATERSON, NEW JERSEY, A CORPORATION OF NEW J EBSEY MACHINE FOR RELATIVELY MOVING SHOES AND THEIR LASTS Application filed duly 24, 192B, fierial 'llhis invention relates to machines for relati rely moving shoes and their lasts. As herein illustrated, the invention is embodied in a relast ng machine of the type set forth in Letters Patent of the United States No.

l,(9T8,l(3-Jl, granted July Dal, 1928, on my application, said patent having been reissued as Patent No. 18,186 on September 15, 1.931. In machines of this type be last is stationarily supported and the shoe, after having been partially drawn over the last by hand, is acted upon by a roll and a shoe horn, the aging the tread face of the sole and the horn e1 ging the inside of the counter 15 portion of tie shoe. The roll is pressed lirmly against the sole and is rotated by pow-er in a direction to push the shoe rearwardly to seat the toe of the shoe on the last. In order to avoid possible injury to the shoe resulting from continued pushing of the shoe by the roll ter the seating; of the too has been com- $1.! ploted, provision is made whereby the operator, releasing a treadle, may stop the rotation of the roll. As an additional safeg5 guard for preventing damage to the shoe in "r the ()l klilliOl' should fail to release the treadle at the proper time, the roll is adapted to slip relatively to the sole of the shoe if the roll continues to rotate after the toe of the shoe has become seated. While machines thus organized have operated satisfactorily, has been found ditticult, when a machine s run at high speed, for the operator to determine just when to release the treadle in order to stop the rotation of the roll at the instant the toe of the shoe seats against the too of the last,

With the foregoing in mind, one object of the present invention is further to improve the construction and mode of operation of machines of this type to insure that the pushinn action of the relasting' roll will be termin ted accurately and reliably at the proper time even though the machine is being run at hi gh speed.

To the accomplishment of this object one 'leature of the present invention consists in the combination, with means for relatively moving a shoe and its last, of mechanism for operating said means constructed and ar- No. 124,664. Renewed July 30, 1930.

ranged to become inoperative when excessive resistance is ollered to said relative movement. As herein exemplified, a relasting roll is moved, by canractuated means controlled by a main driving clutch, into engagement with the tread face of the sole of a shoe partially drawn over a last and the roll is rotated to seat the toe portion of the shoe upon the last by power'driven mechanism. including an auxiliary friction clutch the members of which are automatically engaged and disengaged and are constructed and arranged to slip relatively to each other when the relastmg; roll encounters the additional resistance ol'lcred by the shoe when the toe of the shoe seats against the last. The members of the illustrated. auxiliary friction clutch are held engaged by the pressure of a spring and provision is made for preliminarily adjusting the tension of the spring to vary the amount,

of resistance required to cause slipping of the clutch and thus to adapt the machine for operation upon different kinds of shoes. In this way the distance traveled by the shoe as it is being pushed upon the last is automatically determined by adjustment of the amount of force which is to be applied by the roll to effect the rearward movement of the shoe.

In the illustrated machine the driving members of the main and auxiliary friction clutches are continuously driven, although normally disconnected from their respective driven clutch members, and the operation of the machine is initiated by depression of a foot treadle which throws in the main clutch to rent er operative mechanism for automatically controlling; the action of the auxiliary clutch and the relasting devices. In order to adapt the machine for a wider range of usefulness, another feature of the invention consists in the provision of mechanism adapted to be actuated directly by the operator of the machine for controlling the action of the toe seating means. As herein exemplified, the seating" of the toe of the shoe under the control of the operator is accomplished by use of a second or supplementary foot treadle and connections between said treadle and the spring which tends to hold the members of the friction clutch engaged, these connections being operable, upon depression of the treadle. to compress the spring so as to render the friction clutch operative to drive the relasting roll. This operator-controlled means is capable of. acting also in conjunction with the automatic mechanism for controlling the toe seating means to modify the action of the latter when eversuchprocedure may be desirable. Thus by depression of the second treadle, not only may the clutch spring be compressed sufiiciently to rotate the roll to initiate the relasting of the toe but if the relasting ope ation has been prematurely arrested by the slipping of'the clutch members the springmay be further compressed to stop the'slipping of the clutch and thus to cause the relasting roll to-continue its rotation and its pusning action uponthe shoe.

Another feature of the invention consists in the provision of means entirely under the control of the operator and acting independently of the automaticmechanism for moving the relasting rollinto'and out of work. engaging position whereby the operator, at any time in. the cycle of operations of the machine, may causethe relasting roll toberetracted from-engagement with the work for'the purpose of permitting readjustment of the shoe relatively to the last or the performance of some othermanual operation upon the shoe. As herein shown, a third treadleand suitable connections between the't-hirdtreadleand the relasting roll carrier are employed as the operator-controlled means for causing the relasting roll toibe moved into and out of work'engagin'g position independently of the automatic mechanism- Further to provide for-improved relasting of shoes, the invention provides toe and counter'seating devices constructed and arranged toco-operate so that each-assists and suppiementsthe action of theother in addition to performing its individual functions. This is accomplished, in the illustrated embodimentof the invention, by causing the shoe horn to begin its operation during-the action; of the relasting roll and to function at this time to exert a rearward pull? upon the shoe. Thus the pull exerted by the horn becomes effective to supplement the push ofthe relasting roll to assist thelatter in seating the shoe and inaddition thehorn guides or directs the shoe while the roll is acting'upon it so that the shoe is'prevented from being forcedcto'o much toward one side or'the other of the last. The push of the roll, on the other hand, supplement's the pull' of the horn and thusmakes it easierfor the horn to seat the counter portion. of the shoe.

Still further to facilitate relast-ing operations the invention also providesfor adjustment ofthe relastingroll both in accordance with. theswing of. thelast. and. in accordance with the transverse pitch of the last bottom and preferably, though not necessarily, the means for effecting these adjustments are interconnected so that the adjustments may be made simultaneously by manipulation of a single member which, as herein shown, is movable in one direction to adjust the roll for operation upon a right shoe and in the opposite direction to adjust the roll for operation upon a left shoe.

For adjusting the roll to accommodate the swing of the last, the roll support is mounted for rotary movement to permit angular adjustment, and apair of stops are provided for limiting the rotary movement of the support, the support being locked by suitable means in a position of angular adjustment as determined by either of the stops. For adjusting the roll to accommodate-the transverse pitch of the last bottom, the roll. support is also mounted to permit it to be" tilted transversely. It will thus be seen that the roll support or frame is mounted for angular adjustment in twodifferent planes, or about two non-parallel axes. Furthermore, by reason of the interconnection ofthe-means for effecting these two adjustment's,.the adjustment about one axis automatically determines the adjustment about the outer axis. To enable the roll. tobe brought into cont-act with the sole of a shoe" partially mounted on a last, the roll-carrying frame is mounted for swinging movement about a third axis parallel to the axis ofthe roll, and it will be apparent that this third, axis is non-parallel to either of the other two axes about which the roll-carrying frame may be adjusted to accommodate the swing of. the last and the transverse pitch of the last bottom respectively. The frame may; also be adjusted along the length of the sole; that is, in addition to rotation about the three axes, it also has a movement of rectilinear translation.v It maybe secured positively in any position it may assume in its path of! movement, and the roll is driven from a source of power regardless of the position of its supporting frame.

Another feature of the invention consists in the provision of a plurality of shOe-enlit tion reference being had to the accompanying); drawings in which Fig. 1 is a vertical section of a rclasting machine showing an embodiment of the presout invention, the mechanism being viewed from the left-hand side of the machine;

Fig. 2 is a top plan View of the machine shown in Fig. l with the standard which supports the last pin broken away;

liig'. E is a lu'uizontal sectional view taken below the plane ot the relasting roll carrier;

Fig. st a vertical sectional. view taken substantially along the line IV IV of Fig. 3;

Fig. 5 a detail sectional view taken along the line l V of Fig. l;

Fig. (l is a detail view in end elevation of the shoe horn;

Fig. 7 is a plan view of the horn shown in 6;

Fig. 8 is a vertical sectional view of the lower portion of the machine titted With supplementary 't-lQZltllG mechanism whereby the ope 'ator may directly control the action of the re asting roll;

Fig. 9 is a horizontal sectional view of the portion of the machine shovvn in Fig t l. showinn; particularly the or rctrac" the relastinp; roll from the so 11 being talzen substantially along the line Lit-IX of 8;

ll is a detail sectional view taken along the line K*Ii of Fig. l;

' ll is a. detail sectional view the line Ki -Kl ot il lfl'. ll; mgr. is a fragment section shovvil partici 1 ntrollinp; .1

trcadle niechanrsm ing' roll:

13 is a detail sectioual view on an 011-- scale taken along); the line XHT XlTl l2; .l ig. 1-2; is a detailed view showin tied construction cit shoe horn;

l ig. la) is z eative View :elunxiu' niodi'ication o't relasting roll is mounted;

Fig. 16 is a detail View, partly in elev: and partly in section. taltcu alone; the 1. "IXVI of hi e. 1."); an. r I

li i H 22. inch ot the rclastimr roll and the shoe horn celalively to 2'. shoe "llil its la in the drawing}. L I

designates a shoe which upon the last. The inch-unionwillrl:" ioi lnoui'itine' the sho on the last compr se a ifr2ction rol and a sh e horn ll strumentalities one at 1 has been partiall hand and at. 1

upon

l i it a last pin l a:

sole is located just abo *e h With the roll R and the horn closely underlies the heel-scat surface oi? the last bottom and extends into the counter portion of the shoe. In the illustrated machine provision made for automatically stopping the action ot the machine at three points in each cycle of operations thus dividing each cycle "nto th. co parts or, in other Words causing the relasting of the shoe to be performed progressiwly in three distinct stages. It is to be lillt=."lcl()0tl, however, that the machine may be designed to perform the relasting operation in either more or lo than three it es as may he tound desirable, the number oi. stops in the automatic action of the ma chine being determined largely With reitere to the amount oi? experience and skill ot the operator, and it being; practicable, it the operator is sulllcicntly skillful, to eliminate all stops and thus to make the relasting' operation continuous and entirely automatic.

Each of the three stages oi operation of the illustrated machine is initiated by the og ierator and the action of the relzsting instriunentalities arrested automatically at the end of each stage to enable the shoe to be adjusted or the relasting to be assisted manic ally if desired. During the first stage of a cycle of operations of the machine shown in Figs. 1 to l, inclusive, the roll R is moved iiip'wardly under heavy spring pressure into cnejaggemcnt with the forepart of the sole of the shoe. During" the second stage or step in the cycle the roll lit and the horn H are both tmerated to complete the mounting of the shoe upon the last, the roll being rotated in the direction of the arrow in Fig. 1 and the horn being rocked about the rear edge of the last bottom and caused successively to assume the 'arious positions indicated in Figs. 18 to ill. inclusi e. and the roll heine; finally lmvered to disengage it from the sole of the shoe so as to permit the last, With the shoe mounted thereon. to be removed from the machine. The third stage of the cycle is for the purpose of returning the shoe horn to operative position below the last pin in readiness tor (operation upon another shoe.

The roll R and the horn H are operated by mechanism most of which is enclosed Within a casing 20. This mechanism derives its motion from a horizontal main shaft 22 (Fig. 4.} which is iournaled in bcarin in the easion 20 and is driven by an electric motor 242 (Fig. 3) through a sprocket chain 26. The main shaft 22 revolves continuously so long; as the machine is in operation but in the illustrated machine, the progress of the re last ng op .ration upon each shoe is controlled by the operator through the medium of main clutch 98 comprising a friction driving member pinned to the main shaft 22, and a driven member 32 which is rotatably and slidably mounted on the shaft. The driven clutch member 32 is arranged to drive a Worm 34 upon the main shaft 22 through tongueand-slot connections (indicated at 36 in Fig. 4) between the worm and a hub 88 on the clutch member. The worm 34 is loosely mounted on the shaft 22 and drives a horizontal cam shaft 40 through a worm wheel 42 which is fast on the cam shaft. Fined on the cam shaft is a cam 44' (Fig. l) which effects the raising and lowering of the relasting roll R, a cam 46 (Fig. 4) which controls the mechanism for rotating the relasting roll, t wo cams 48 and 50 (Fig. 1) which functionthrough intervening mechanism to operate the shoe horn H, and a fifth cam 52 (Fig. 4) hereinafter referred to as the stop cam, which functions to throw out the main clutch 28 at predetermined points in each cycle of operations, thus dividing each cycle into the plurality of stages or steps above referred to.

The separate stages of each cycle ofoperations of the machine are initiated by depressing a foot treadle 54 which is connected by mechanism best shown in Fig; 4 to trip a spring-pressed clutch shifting lever 56 for the purpose of throwing in the main clutch 28. The clutch shifting lever 56 is mounted on a. fixed pivot 58 and is made in the form of a bell crank havinga downwardly ext .iding arm which is yoked at 57 to straddle the hub 38 of the driven clutch member The yoked arm of the lever 56 carries pins 60 which are located at opposite sides of the hub 38 and project into an annular groove 62 therein'for the'purpose of sliding the driven clutch member 82 on'tlie shaft 22 whenthe lever 56 is rocked. A spring 64, one end of which is secured to an extension of the'yoked arm of the lever 56, tends to swing said lever in a direction to throw in the main clutch. The driven clutch member 82'is formed with a conical peripheral surface at one end for frictionally engaging a complemental surface upon the interior of the driving clutch member 30and with another conical peripheral surface at its opposite end'for engaging within a stationary brake band 66 when the main clutch isthrown outby the action of the lever 56.

Betweensuccessive'stages of each cycle of operations the members of the main clutch are held out of engagement with one another by means of a latch lever 68 which is also in the form of a bell crank and which is mounted upon a fixed pivot 70 above the clutch" shifting lever 56. The longer arm of the latch lever 68-is yoked and carries, be tween the sides of its yoked portion, a lug 72 arranged to engage an ear 74 formed on a dog 76 which is pivoted at 78 to the forwardly extending arm of the clutch shifting lever 56. he shorter or'upwardly extending arm of the latch lever 68 is connected by a link 80 with one end of a cam lever 82' which is I mounted. to turn about afixed pivot 84. At

its opposite end the cam lever 82 carries a cam roll 86 arran'ged to beengaged'bythe stop cam 52. A spring 88, one end of which is secured to the lat'chlever 68, tends to swing the latchleverupwardly and serves to hold the cam roll 86 against its cam. lVhen the latch lever 68 occupiesthe position in which it appears in Fig. 4 the lug 72, by engagement with the dog 76, serves to hold the driven member 32 of the main clutch disengaged from the driving member 30 against the force of thespring 64. The dog 7 6' is adapted to be tripped, upon depression of the foot treadle 54, to-disengage it from the-latch lever 68 and thus enable the spring 64 to rock the sion of the treadle 54 the dog 76 will be rocked in a counterclockwise direction, as viewed in Fig. 4, against the action of a spring 98 which connects the lower portion of the dog 76 with the link 92, and which tends to hold the dog in the normal position determined by a stop-shoulder 100 on the dog which is adapted to enga e a suitable abutment surface on the forwarc ly-extending arm of the lever 56. The above-described rocking movement of the dog 76 will disengage the ear 74 from the lug 72, thus releasing the lever 56 to the action of the spring 64, and will result in the rocking of said lever in a direction to throw the driven member of the main clutch 28 out of engagement with the brake band 66 and into engagement with the driving member of the clutch. Thereupon the worm 34 will be connected'to turn with the main shaft 22, and the cam shaft 40 with the several cams thereon, will be driven until the main clutch is automatically thrown out at the termination of the first stage of a cycle of relasting operations.

The throwing out of the main clutch 28 is effected by a positive downward movement of the latch lever 68 derived from the stop cam 52 through connections already described. To enable the latch lever to operate in this manner to throw out the main clutch, the dog 76 must first be released from its tripped position and this is accomplished during the final portion of the downward movement of the foot treadle 54 by means of a cam face 102 on the block 94 which functions, by engagement with a pin 104 on tl e latch lever 68 to first stage of the cycle, the stop cam 52 causes the latch lever 68 to be lifted, the dog 76 will he rocked to a position directly beneath the lug 72, as determined by the stop shoulder 100. Thus when the latch lever is rocked downwardly, as above described, the clutch shiftin lever will be actuated to move the driven member of the main clutch 28 away from driving member thereof and into engagement with the brake band 6o, whereupon the rotation of the cam shaft -10 will be immediately arrested. The second and third stages of each cycle of operations also initiated by c epression of the foot treadle 5 1 which causes the main clutch shifting mechanism to operate in the manner just de scribed. Suitably arranged projections are provided on the stop cam to effect automatic termination of the second and third stages of the cycle at the proper times.

llefore the lirst stage in a cycle of operations is initiated a shoe is partially drawn over a last by hand and this may be done cl ier before or after the last has been placed upon the last pin P. The last pin 1 projects from a carrier (Fig. 1) pivoted at 112 to the lower free extremity of a goose neck extension 114; of the frame or casing 20, this extension being shaped as shown to avoid interference with the upper of a high shoe or with the necessary upward movement of the shoe horn H. The carrier 110 is capable of turning about the pivot 112 to move the last pin from the last receiving position shown in Fig. 22 to the position shown in Fig. 1, wherein the last is located for the performance of the relasting operation. In order that the last pin shall be yieldingly maintained in position to receive a last, the carrier 110 is cit ,inected through a link 1.16 and a rod 117 with an upwardly spring-messed plunger 111% which is guided for vertical sliding movement within a bore 119 in the solid extremity of the goose neck 11-1. To hold the last rigidly in position for the relastin of a shoe thereon a spring-pressed latch bar 120, arranged to st le vertically within a guideway l2]. in the ei .mity of the neck 114, is shaped at its lower end to enter a notch 122 in the last pin carrier 110. The latch bar is adapted to be tripped automatically to re lea the last pin carrier 110 at the end of each relasting operation, so that the last may be swung iupwardly to facilitate the remove of the relastcd shoe from the machine. For this purpose a pin. 1221 projects from the latch bar into the path of the carrier for the shoe horn H which will hereinafter be described. To enable the latch bar 120 to be tripped manually. if desired, to permit removal of the shoe before the completion of the relasting operation, another pin 126 in the latch bar extends through a slot 128 in, the latch bar housing into a position to be conveniently manipulated by the operator. The lower end of the latch bar 120, by engagement with a flat face 130 in the last pin carrier 110 serves to steady the latter when in last-receiving position without positively looking it, thus leaving it free to swing downwardly without requiring manual tripping of the latch bar whenever a last has been placed on the last pin.

After a last with a shoe partially drawn thereover has been positioned as shown in Fig. 1 the relasting roll it is operated to start the mechanical relasting of the shoe. The roll it may be made of comparatively soft yielding rubber and shaped as best shown in Fig. 2, the peripheral surface of the roll tapering somewhat from the opposite ends of the roll toward an annular groove 132 at the middle of the roll this shape facilitating effective action of the roll in connection with shoes on lasts having certain characteristics as will be more fully explained hereinafter. The roll It is rigidly secured in any Suitable manner upon a horizontal shaft 134 journaled in bearings 136 on a slide or support 138 which is mounted on a carrier 140 for adjustment toward the front or rear of the machine to vary the points lengthwise of the shoe at which the sole is to be engaged by the rclasting roll. The front portion of the relasting roll carrier 140 is pivoted upon a 95 horizontal shaft 142 journaled in the upper portion of the casing 20 so that the carrier 140 is adapted to rock about the shaft 142 to raise or lower the roll 1% so as to move it into and out of frictional engagement with the shoe. 100 The shaft 142, shown, is located approximately beneath the last pin P and the arrangement is such that the relasting roll is enabled to swing toward the shoe through a path so disposed relatively to the shoe bottom 195 that the pressure of the roll will have no tendency to move the shoe forwardly of the last but, on the contrary, may have some tendency to move the shoe rearwardly of the last (but forwardly with respect to the machine) even 110 before the roll begins to rotate.

To effect the raising and lowering of the rclasting roll R the rearward portion of the roll carrier 140 is connected with a cam lever 1416 which is pivoted upon a fixed rod 148 115 and carries a cam roll 150 arranged to ride on the periphery of the cam 14. The connections between the relasting roll carrier 140 and the cam lever 1 16 comprise a pair of parallel links 152 the upper ends of which are pivoted at 120 15 1 to the rearward end of the carrier 14:0. The lower ends of the links 152 are pivoted at 155 (see Fig. 10) to a not 156 threaded upon a sleeve 158 through which extends a vertical rod 160. the rod being slidably and rotatably 125 mounted in bearings 17 6 (Fig. 1) formed within the casing 20, and being capable of sliding and turning within the sleeve 158. A spring 162 surrounds the rod between a washer 163 held against the lower end of the thread- 1311 ed sleeve 158 anda second sleeve 164 which is slidingly mounted upon the lower portionof the rod 160 and which is connected by means of links 166 with the forward end of the cam lever 146. The upper end of the sleeve 158 is provided with a head 168 which is notched, asindicated at 169169, to receive the opposite projecting ends of a pin 170 which extends through the rod 160, and a stop collar 172 is pinned to the rod 160 just above the lower bearing 176 and is adapted to engage the lower end of the sleeve 164. The spring 162 is thus confined between the sleeves 164 and 158 and normally is held under more or less compression thereby.

When the cam 44 becomes operative to raise the rearward end of the lever 146 and the sleeve 16.4, the spring 162 then functions y'ieldingly to raise the sleeve 158 and the nut 1 .61and,.through the links 152, to swing the roll carrier 140 upwardly and thus to raise the relasting roll B into engagement with the bottom of' the shoe. Thereupon upward movement of the upper sleeve 158 is arrested while continued upward movement of the cam lever 146 and the lower sleeve 164 serves to increase the compression of the spring 162 so that the relasting roll R is caused to apply the desired heavy pressure to the work. After this heavy pressure has been maintained for a suflicient period of time the cam 44 permits the lever 146 to swing downwardly, thereby first relieving the compression of-the spring 162, and thereafter removing the relasting roll from engagement with the shoe and lowering it into its normal inoperative-position as indicated in Fig. 17.

In order that the amount of heavy pressure to be applied to the shoe may be predeter- -minedand varied at willby the operator, provision is made for adjusting the normal or initial elevation of the relasting roll or the location of this roll .relatively to the shoe when the roll is in its lowered position. To

this end, there is splined to the upper portion of the rod 160 a beveled pinion 178 (see particularly Fig. 10) the hub of which is journaled within the upper bearing 176. As best shown in Fig. 10 a collar 177 fixed upon the upperend of the hub of the pinion 178,

retains the hub within its bearing. The pinion 178 meshes with a beveled pinion 180 on a horizontal shaft 182 journaled in bearings 184 (Fig. 2) and carrying at its forward end a hand wheel 186 which is located within lIOl-l R in this way the distance to be traveled bythe roll before engagingthe work will be varied and consequently the length of-strokc of the cam lever146 whichgiselfectivetocompress the. spring 162 will .be correspondingly The head 168 together with the washer 163 insure that the sleeve will not be disengaged from the nut 156 accidentally-by adjustment of the hand wheel 186, the said head 168 and washer 168 limiting respectively the upward and downward movementsof thenut on the sleeve. I

In order ,that the relasting roll B may ,be adjusted to vary the location lengthwise of the shoe at which :the roll is to engage the sole and in order that the roll may :be adjusted forwardly or backwardly in accordance with thesizeof the shoe, the following provisionis made for adjusting the slide 138 relatively to the roll carrier 140. As shown in Figs. '1 and 2, a rack bar 194 securedto the lower side of the slide 138 ,is engaged by a pinion 196 fast on a shaft 198 mounted to turn in the carrier 140. A second pinion 200 (Fig. 2) also fast on the shaft .198, meshes with rack teeth 202 formed on the lower side of a bar 204 which is mounted .in a sli-deway in the roll carrier 140. On the upper side of the bar'204 is formed a second series of rack teeth 206 which mesh with the teeth of a pinion 208 fast on the shaft 142 about which ;the roll carrier 140 swings. A worm gear 210, also fast on the shaft 142, is engaged by a worm 212 on a horizontal shaft 214 which .is journaled in bearingson the upper portionof thecasing 20. The shaft 214 has secured to its forward-end a hand wheel 216 by which it may be turned to rotate the shaft 142 andslide the rack bar .204 to turn theshaft 198 and thereby .to adjust the slide 138 forwardly or backwardly with respect to the roll carrier 140. On account of the employment of a worm and worm wheel in the train of gearing for effecting this adjustment the roll-carrier slide 138 will be locked in any position into which it is moved by means of the hand wheel 216;

The relasting roll R is driven from the main shaft 22 through an auxiliary friction clutch 220 (Fig. 4), the members of which are arranged to slip if excessive resistance is offered to the turning of the roll during the relasting operation. The :clutch 220 is adapted to be thrown in and out through iii mechanism actuated by the cam l6 on. the cam shaft 46 thus providing to r anton'iatic control of the operation of the 1 Tsti 1 rol The :lriction clutch 220 rompri a clutch member which is i. the or in. a

two c l1 1 11h clutch member 224-. s tilinei. worm 226 which is rolatablv 1 d upon the inaui shat't 'lhe worn. 2 6 drives a worm wheel 228 which is last on i. vortic: i. all 230 gournaled in b airine's 32 on the (as in 20. The sh O is connected by a universal joint i a sleeve (Fig. 1) within which is arrange l to tc e ope a sh: ill-l6 connected by a universal joint 2 10 v vertical shalt 2 1-2 which mounted to turn on the roll carrier slide 3.36. Secured to the u' uier end of the shaft 2412 a l evcl pin last on the upper end or the shaft llll which wrrl-r-w the rclastuw roll. The uinversal its ifll-l and 221-0 and ii. ding: tceiatoorz (iUjL1l'lQCtll)l1 between the shuns 230 permit the necessary swir 'ing o'l" me; roll to be in -rier l-ll: to enable the rel...

moved into and out of cup: j cnient with the wort: and these connections also permit adjustment of 10 roll carrier slide 138 length wise oi? the last for the purposes hercinheilore described.

*on nieinber of the friction clutch is operated to throw the clutch in or out by l'llitlllrl ot a bell crank lever 24-8 (Fig.

.iuo to re about a lined pivot 250 and hav a downwardly extending arm which is 'l'orlted stradolc the hub oi the driven clutch member the forked arm bearing pin: which project into an annular e'roow 2M in the hub oi said clutch member. The ll crank lever 24:8 is rocltcd by men. o'l. the c: in 26 ope 'ating; tl'n'ou z'h 1am lever 256 which is pivotcl upon the shaft 90 and carries a cam roll which rides on t l-Le canu the cam roll being held against the cam by the action oil a spring 258 which is seem at one nd to the lever 256 and its og'ipos, s end to a portion of the raising 20. .i a lever 256 is connected with the bell crank lethrough the following; connections.

'lhe warwardly extending): an n of t 1 our is forked and f' ins 266 which are received in suitable grrcov x Formed in the oppo e sides ot' a rectangula block 262. The bloch 262 is loosely mount ed upon the lower portion of a vertical rod 26 which is both slidably and rotatably cashing- 20.

mounted in hearings 266 on the inside of the r A spring 268 surrounds the rod between the block 262 and a nut 270 which is threaded on the rod 264, and a stop collar 272, which is pinned to the rod 264 beneath the block 262, limits the down ward movement of the sleeve under the action of the spring 268 and functions to maintain the spring normally under a certain. amount of compression. lligidly secured to the rod 26%, above the nut 270, are two collars 274 and 276, the latter having a flanged lower eXtre1nity 227, and a sleeve 278 is loosely mounted upon the rod between these collars and is connected by means of links 280 with the bell crank lever 24:8. With this construction, when the rearwardly extending arm of the cam lever 256 rocked upwardly the rod 26% will be raised yieldingly by the action of the spring 268 upon the nut 270 and consequently the sleeve 278 will he 'aised together with the rod 26% and, through the links 280, the bell crank lever 248 will be 'oclted in a direction to throw in the friction clutch 200 t start the rotation of the relastiug roll R. It at any time while the members of the friction clutch are engaged the resistance oll'ered by the shoe to the turning of the rclastinp; roll is sul'licient to overcome the force of the spring 268 which yicldingly holds the clutch members engaged. the clutch members will slip and the relasting roll will stop turning, thus avoiding damage to the shoe.

In order that the amount of friction between the relasting roll and the shoe may be predetermined and regulated to secure the desire l results provision is made for preliminary adjustment of the amount of initial compression of the spring 268 so that the force which holds the friction clutch members engaged may be varied as desired. This is accomplished by rotating the rod 264. to raise or lower the nut 270. In order that the rod 264 may be conveniently rotated for this purpose the collar 274 has a tongue and roove connection 284: with the hub of a spiral gear 286 which is splined on the rod 6i, this construction permitting the rod 26% to slide vertically relatively to the gear 286 vithout interfering with driving connections between said g ar and the collar 27%. is shown the hub of the gear 286 extends upwardly through the upper bearing and a collar 287 fixed to the upper end of the hub retails the latter within its hearing. The gear 286 is engaged by a gear 288 (hi 3) on a horizontal shaft 290 mounted to turn in hearings in the casing and carrying at its forward extremity a hand wheel 292, the hand wheel being; located on the outside of the casing 20 and within convenient reach of the operator. hen the hand wheel is turned the rod 264 will also be turned and the nut 2'70 will be raised or lowered to tighten or loosen the spring 268. By adjustment of the tension of the spring 268, as above described, the power which the clutch 220 wil transmit without slipping may be variec, and the power transmitted by the roll R correspondingly varied. To insure that the nut 270 will not accidentally become disengaged from the threads on the rod 264 a pair of studs 294 project upwardly from the nut 270 through apertures in an annular plate 296 which surrounds the collar 276 above its flanged or enlarged lower extremity 277. The flange277 on the bottom of the collar 276 limits the upward range or" adjustment of the nut while heads formed on the studs 294 are arranged to engage the plate 296 to limit the downward range of adjustment of the nut and in this manner the nut is prevented from becoming disengaged with the threads on the rod. The studs 294 also prevent the nut 270 from turning with the rod 264.

The horn for mounting the counter por tion of the shoe on the last may be of one piece or any suitable construction but as herein shown it is made in two parts 300, 300 (Figs. 6 and 7) divided along the longitudinal center of the horn. The parts 300, or the corresponding part if a one-piece horn is employed, may be of the more or less angular "transverse contour shown in Fig. 6, or they may be and often are curved in arcs of circles of such radius that the transverse curvature of the horn will be substantially concentric with the center of curvature of the rear edgeoi the bottom of a last on the last pin.

Normally the parts of the horn H are yieldingly maintained in the open position in which they appear in Figs. 6 and 7 but they are adapted to-swing toward each other. thus permitting the horn to collapse to facilitate withdrawal of the horn from between the shoe upper and the narrow top of the cone of the last without unduly stretching the upper. To this end the parts 300 of the horn are severally rigidly secured to car *ier memnormally to hold the horn in expanded or open position, this position being determined by engagement of the hinged carrier members 302 with stop shoulders 308 formed on a bracket 310 to the yoked upper end of which one of the members 302 is pivotally connected by a pin 311. The carrier member 302 which is mounted upon the pin 311 is adapted to engage the pin 124 on the latch bar 120 to effect the automatic release of the last pin lcarrier 110 after the horn has reached the upper position shown in Fig. 21, the horn carrier having a slight amount of excess upward movement imparted thereto for this purpose by means of a rise 313 on the cam 50.

The bracket 310 which supports the memsecured to the upper end of a tubular support 312 and this support is mounted for telescoping sliding movement upon a rod 314 which is pivoted at its lower end toswing about a horizontal shaft 316. This construction enables the pivot pin 311 to have a mon imparted thereto which the iiiltttlll of a rearward swinging movement about the axis of the shaft 316 and the upward sliding movement of the tubular support 312 upon the rod 314, the path of this resultant motion being indicated by dotted lines at 318 in Fig. 1. As the pivot pin 311 moves through the lower portion of its path the horn H is constrained to rock about therear edge o'fthe last bottom as a fulcrum and to swing about the axis of the pivot pin 311 against the tension of a spring 320 which is housed within the upper portion of the tubular support 312, the spring being connected at its lower end r to the support and at its upper end to an arm 322 extending from one ofthe hinged carrier members 302.

The tubular support 312 is rocked about the axis of the shaft 316 to impart the forward and rearward components of movement to the shoe horn by means deriving its motion from the cam 48. This mechanism comes a lever 324 (Fig. 1) which is pivotally mounted upon a horizontal shaft 326 and carries a cam roll 328 arranged to ride upon the periphery of the cam. A spring 330 secured at one end to the casing 20 and at its opposite end to a downward extension of the cam lever 324 tends to hold the cam roll 328 against the cam. The cam lever 324 is made in the form of a bell crank the upwardly extending arm of which is connected by means of a link 332 with a sleeve 334 which is loosely mounted upon a horizontal rod 336 (see also Fig. 11) arranged to turn and slide in bearings formed within lugs 338 and 340 carried by the casing 20. The movement of the cam lever 324 is yieldingly transmitted to the rod 336 through the medium of a spring which surrounds the rod between the sleeve 334 and a nut 344 which is threaded upon the rod 336 and is arranged to slide within the bearing lug 338. The sliding movement of the rod 336 is transmitted to the tubular shoe horn support 312 by means comprising a link 346 pivotally connected at its forward end to an car 348 (Fig. 11) projecting from the rod 314 through a slot 350 extending lengthwise of the tubular support 312. At its rear extremity the link 346 is pivotally connected with a collar 352 carried by bushing 354, on the rod 336, the bushing 354 being confined between collars 356, 356 which are pinned to the rod. The collar 352 is fixed to the bushing 354 by a set screw 358 which may be loosened to permit adjustmentof the collar along the bushing to vary the 10- cation lengthwise of the last of the path of movement of the horn.

In order to vary the amount of tension exerted by the horn H upon the counter portion of the shoe as the horn rocks about the rear edge of the last bottom as a fulcrum, provision is made for varying the amount of compression of the spring 342 through the medium of which the yielding horizontal components of movement are imparted to the here. To this end the rod has splined thereon a spiral gear 860 (Figs. 8 and 11) the hub of which extends through and is journaled within the bearing lug 340. The bearing lug 34:0 is cut away, as shown at 341 in Fig. 11 to receive a collar 362 which is rigidly secured to the hub of the gear and serves to prevent axial displacement of the gear in either direction. Meshing with the gear 360 is a secou d spiral gear 86 1i fast upon a suitably journaled shaft 366 the outer end of which extends through the side of the casing 20 and is provided with a hand wheel 368 by means of which it may be turned to rotate the rod 336 to slide the nut 34A and thus to tighten or loosen the spring 342.

The tubular support 312 for the shoe horn is raised and lowered upon the rod 314 to impart the upward and downward components of movement to the horn by means of mechanism deriving its movements from the cam 50. This mechanism comprises a cam lever 370 mounted to rock about the horiaoul' sl 26 and carrying a cam roll 372 arrangc-ad to ride upon the periphery of the cam 50. The lever 370 is connected by means of parallel links 374 to opposite sides of a sleeve .376 fixedly but adjustably secured to the lower extremity of the tubular support 3.122. The sleeve 876. which is split longitudiually v is secured to the tubular support 312 by means of binding screws 378 arranged to tighten the sleeve upon the support and a suitable key or plug 879 projects from the slene into the slot 350 in the support to prercnt the tubular support from being @011- t icted so as to bind upon the rod 314.

In using a machine constructed as thus far described the operation is as follows. A last. usually having a shoe already partially e'lrawn thereover, is placed upon the last pin P while the latter occupies the upwardly tilted position shown in Fig. 22 and the last then swung downwardly to the position shown in Fig. 17, the last pin carrier being locked to hold the last in this position. If the shoe has not been drawn on the last as far it practicable to do by hand before the last is placed on the last pin the manual pushing of the shoe on the last may be accomplished after the last has been placed on the last pin and swung downwardly into position for the power relasting operation. The operator then depresses the treadle 54, thus tripping the main clutch and starting the first stage of the cycle of operations. During this stage the roll R is raised into contact with the tread face of the sole (the roll engaging the sole approximately at the ball and applying heavy pressure thereto) after which the main clutch is automatically thrown out and the machine comes to rest. The engagement of the roll with the shoe serves to hold the last firmly in place upon the last pin and to hold the shoe firmly in position upon the last. During the period of rest following the first stage of the cycle the operator may use a shoe hammer or per form other manual operations to prepare the shoe for the automatic toe seating operation. The second stage in the cycle is then initiated by again depressing the treadle 54. During the second stage the relasting roll is rotated to seat the toe of the shoe upon the last and very shortly after the roll starts to turn, the shoe horn begins its movement for the purpose of seating the counter portion of the shoe. The operations of the relasting roll and the horn overlapping in this manner each of said instrumentalities is enabled to assist the other, the rearward pull of the horn supplementing the push of the roll to facilitate the seating of the toe while the push of the roll supplements the pull of the horn to facilitate the seating of the counter portion of the shoe. In addition the horn serves to guide or direct the shoe in its rearward movement upon the last and to offset any tendency of the shoe to be forced too much toward one side or the other of the last. Before the termination of this second stage of the cycle the relasting operation is fully completed, the horn is finally withdrawn from between the shoe upper and the lastto the position shown in Fig. 22, the last pin carrier is unlocked, and the relasting roll is retracted from engagement with the sole to permit the removal of the last from the machine which is done after the machine comes to rest. Thereafter the operator depresses the treadle 54 for the third time initiating the third stage in the cycle during which the shoe horn is returned to the position shown in Fig. 17 ready for operation upon another shoe.

To facilitate the relasting of the toe of the shoe it is sometimes desirable for the operator to press down manually upon the shoe upper at the toe with the palm of his hand with a considerable amount of force applied so as to urge the upper forwardly relatively to the sole or otherwise to assist or modify the operation of seating the toe of the shoe. In order to facilitate manual control or modification of the relasting operation in this man ner the illustrated machine, as shown in Fig. 1, is provided with a stationary hand grip, or handle in the form of a crossbar 510, the crossbar being carried by the slide 138 which supports the relasting roll and being located closely adjacent to the periphery ofthe roll and immediately beneath the toe portion of the shoe so that the operator, when placing the palm of his hand over the shoe, may engage the hand grip with the ends of his fingers. By seizing the hand grip he is enabled to utilize his finger muscles to augment the action of his arm and shoulder muscles and thus he is enabled to apply a greater amount of pressure to the shoe, to maintain it'more steadily and effectively and to control it more sensitively during the action of the relasting roll, than he would be able to do if no hand grip were provided.

As shown, the crossbar 510 constituting the hand grip just referred to is carried between the upper ends of the arms of a yoke frame 512 which is pivoted as shown at 514 to the upper end ota post 516 which in turn is received with provision for vertical adjustment in an 'apertured boss 518 on the slide 138. Suitable clamping bolts 520 and 522, respec tively, are provided for securing the post 516 in diilerent positions of vertical adjustment and for securing the yoke frame 512 in difierent' positions of angular adjustment about the pivot 514. By loosening these bolts, the location of the crossbar 510 relatively to the shoe may be adjusted as may be found desirable the better to adapt it for the operators use.

In Fig. 14 a modified form of shoe horn is shown at E. This horn I- is of onepiece construction and is provided upon its outer surface with a small cam-like projection h for the purpose of smoothing out the upper edge portion of the shoe upper at the rear of the shoe at the beginning of the rearward and upward movement of the horn. The shoe upper is very liable tobe turned or'rolled inward- 1 Y at the upper rear edge of the heel of the shoe and in a machine having no'special means forsmoothing out the upper at this point, such asthe cam projection it just described it might often be desirable for the operator manually to smooth out the upper during the dwell between the first and second stages of the cycle of operations. The provision of he 'clam projection it however enables this operation' to be accomplished automatically and makes it practicable to do away with the dwell between the first and second stages if desired.

Before referring to the modified form of relasting'roll carrier illustrated in Figs. 15 and 16 there are certain peculiarities concerning'the shapes of lasts which should be borne in mind. In most lasts what may be regarded as the longitudinal median line of the toe portion of the last bottom is dis osed at more or less of an angle to the ongitudinal median line of the heel portion of the last bottom this laterally oflset relation of the toe and heel portions of'the last being coinmonly referred to as the swing of the-last. Also, in many lasts the bottom surface in the vicinityofthe ball has more 'or less transverse inclihation,' this"surface sloping downwardly toward the innered'geof the last bottom and this transverse inclination being hereinafter referred to as the pitch or" the last bottom. chine shown in Figs. 1 to 14, in connection with lasts in whichneither the swing nor the pitch of the last bottom is excessive it has been found unnecessary in-many instances'to make any allowance for either'the swing'or the pitch referred to. In other cases it has been practicable'to make suitable allowance for both the swing and the pitch by twisting the last more or less to one side or the other about the last pin and thusshiftingthe'forepart ofthe shoe axially-of the-'relasting'rollto vary the direction of the push applied to the toe of the shoe and tobringboth lateral margins of the'sole into frictionalengagement With the roll the surface of which "tapers toward the middle of the roll to' facilit-ate-the latter adjustment.

In cases where the swingof the last is more pronounced it may be desirable to make some allowance or compensatingadjustme-nttherefor. As hereinafter more fully explained this is accomplished by swinging adjustment of the relasting roll and the forepart of the last toward one side of the machine or the other, it being pointed out that if no such adjustment of the rollWere made the roll would be positioned'with its axis perpendicular to the direction of rearward pull of the shoe horn and, while theforepart of the last could be adjusted relatively to the roll by swinging the last about the last'pin sothat the direction of'the push exerted bythe roll would be effective properly to seat the-toe or" the'shoe, such swinging adj ustment-ot the last relatively to the roll would twist the heel portion of the last so 'that its'median'line would be disposed at a considerable angle to the direction of rearward pull ofthe'horn and difiiculty would be experienced in properly se'ating't-he counter portion of theshoe;

rrccordingly provision'is'made for swinging the roll R bodilyin ahorizorital plane toward the right or the left (depending upon whether the shoe is a right shoe'or a-left' shoe) to'such an extent that when thelast is swung a corresponding amount aboutth'e last pin to centralize the ballotthesole relatively to the roll, the median line of the'heel portion of the last'bottom wille'Xtend-in the direction of rearward pull 'ofthe shoe horn'but the direction in"which theroll will 'pushthe shoerelatively to the last will remain substantially' the same as before 'the'adjustment was made. Provision is alsomadewhereby the roll may 'be tiltably adjusted'crosswise ofa towardoneside or'the'other' of the machine In using thema- .ribed support loo, is provided with a pod 5530 upon which is pivoted tor lateral j adjustment :1 head 282 which car- The low r surface oi the head a machined to faci itate the swinging of over the upper surface of the slide the he: i is retained in place upon ,7 by ans oi a flange 38% which is idl secured to the slide and is curved post 300 and arranged to overlie a similarly curved anp c 385 on the head Proje ting upwardly from the central portion oi the head 382 are spaced 1* I 386 and 35-38 which are aperturen to re-ctne trnnnions 390 projecti. mm the front and rear portions of hi'illow rectangular frame 392 within which is jonrnnled the shalt llel that carries the roll ll. The shaft 123i t "1011 shown in .l;- 1s. l to let, by inconsun V terines ing bevel pnnonand on the Joly. ln order 1 and lo to support the shalt iranie W2 is provided with an outw J ollset bearing 39% within which said sin ft is journaled.

'l'hc abovedescribed arrangement such that the trunnions 300 emend lengthwise with respect to a shoe and last supportei'l by the last pin and the shaft l3-l is dispo: l at right angles to the comm n axis oi the trunnions 300. Thus the roll It is positinned with its axis extending crosswise ol' the shoe. The arrangement is tlurther such that tilting of the frame 392 about the axis of the trnnnions 390 will tilt the roll to ac eonnnodatc t to variations in the pitch or transverse imtlination of the last bottom and swing-innot the b ad 382 about the pivot po -t 380 will adj n. he roll bod il toward one side or the other oi: a central position in the machine in thy manner and for the purpose above desci'. ad. The imiversal joints 23d and 2-H] and the sliding; telescopic conneclion between the shafts F230 and 2442 in the roll driving; mechanism will permit the a ove dos-:eribcd tilting: of the frame 392 about the an axi oi the truiniions 390 and also the above described swingf gr of the head 382 about the post 380 the roll driving mechanism. bein unal'l'ected by the adjustment o'l the roll either through such tilting; of the frame o :1 01?, or through such swinging; of the head The roll havino" been adjusted by the rwinning ot the hi t; 382 about the i 380 the operator will the last Ii al t l pin P a corresponding amount to centralize the toe of the shoe relatively to the roll, thus msitioninothe heel of the last properly with, respect to the horn H. The axis of the last pin P about which the last swung extends substantially through the center of curvature of the rear edge of the last bottom and accordingly the lateral swinging adjustment of the last will not alter the concentric relation of the curve at the rear of the last bottom to the transverse curve oil the shoe horn. Since all lasts swing inwardly the relasting roll and the last will be swung toward the left side of the machine in compensating for the swing of a last for a right shoe and toward the right side of the machine in compensating for the swing of a last for a left shoe.

l or the purpose of eil'ecting the swinging adjustment of the relasting roll about the post 380 a handle 590 (Fig. 15) is provided on the head 3832 which carries the relasting roll and provision is also made for limiting the extent of swinging adjustment of the head and for locking" the head in adjusted position. The handle 896 is in the form of a lever and it is pivoted at 398 to the head 3 ii). The middle portion of the handle or lever 396 extends through a horizontally elongated opening 390 formed between abutmmts 4-00 which project upwardly from a laterally oliset portion 402 of the head 382. The distance between the abutments too is somewhat greater than the width of the lever 306 so that the lever is capable of a small amount of movement relatively to the head before engaging one or the other of the abutmen'ts -il00 and thus becoming ell'cctive to swing the head. This movement of the lever 2396 relatively to the head 382 is utilized to release the locking means which holds the head in adjusted position.

The means for limiting the extent of swinging adjustment of the head 382 comprises two stop pins 44-04 which severally are formed upon two rectangular blocks 406 and which project upwardly from the blocks into the path of a stop lug 408 (Fig. 16) depending from the oliset portion 402 of the head 882. The lug;- 408 is located between the stop pins 40% and the latter are adapted to co-operate with the former to limit the swinging adj ustment 01"? the head 382 in either dirccti on and thus to position the relastingr roll to accommodate the swing of the last whether the last be for a right shoe or for a left shoe. The stop pins 404 are ma le adjustable toward and from each other to vary the extent of swinging adjustment to be imparted to the head 382 and to this end the blocks 4-06 are adapted to receive the opposite end. portions of a right and left threaded adjusting screw 410 which is mounted to turn in bearings 412 at the opposite ends of a laterally oiiset portion 414 of the slide 138. Between the bearings l12 the ol'l'set portion 41:14: is slotted to receive the blocks 406 and to prevent them from turning with the screw 410 so that the rotation of the screw will act to shift the stop pins 404 equal amounts toward and from each other.

In order to lock thehead 382 in adjusted position, as determined by either of the stop pins 404, a pair of latch blocks 416 are mounted for vertical sliding movements in guideways formed within the abutments 400 at opposite sides of the lug 408, each latch block 416 being spaced from the lug 408 a distance just sufficient to receive between them one of the stop pins 404. The latch blocks 416 are urged toward operative positions by means of springs 418 and they are adapted to be raised to release the stop pins 404 by means of a rocker member 420 which is located between the latch blocks and is pivoted at 422 to the offset portion 4 2 of the head. The rocker member 420 is provided with oppositely projecting fingers 424 arranged to engage beneath ears 426 on the latch blocks. T he rocker member 420 is operated directly from the handle or lever 396 by means of rack teeth 428 on the lever which mesh with gear teeth 430 on the rocker memher 420. The arrangementis such that when the handle 396 occupies a neutral or central position in the opening 399 the fingers 424 of the rocker member will be horizontally alined and both latch blocks 416 will be maintained inoperative above the plane of the stop pins 404. When the handle 396 is swung in one direction to adjust the roll for operation in connection with a last for a right shoe the member 420 will be rocked so as to permit oneof the latch blocks tobe spring pressed downwardly into position for operative engagement with one of the stop pins 404 and when the handle 396 is moved in the opposite direction to adjust the roll for operation in connection with a last for a left shoe the member 420 will be rocked in the opposite direction so that the other latch block 416 will be spring pressed downwardly into position for operative engagement with the stop pin 404. The arrangement further such that when either latch block is in lowered or operative position the other latch lock will be maintained in raised or inoperative position. The stop pins 404 are formed with inclined cam faces 432 arranged to coact with cam faces 434 formed on the latch blocks 416 so as to permit each latch block to ride over its respective stop pin 404 dur ing the movement of the handle 396 for the purpose of adjusting the position of the head 382 but will be prevented from moving in the opposite direction until the latch block has been raised by movement of the handle for the purpose of changing the adjustment of the relasting roll.

As shown in Fig. 15,'provision is also made for utilizing the lateral swinging adjustment of the head 382 for effecting the tipping of the relasting roll R for the purpose of adapting it to the pitch of the last bottom. For this purpose the teeth of a segmental rack bar 436, secured to'the slide 138 are adapted to be engaged by the teeth of a se ment 438 formed at the lower end of an arm 440. The arm 440 depends from one end of a stud 442 which is mounted to turn in a bearing in the lug 386. The arm 440 is grooved lengthwise to provide a 'slideway for a rectangular block 444. A bolt 446 projects from the outer side of the block 444 through a longitudinal slot 448 in an arm 450, the upper end of which is pinned to one of the trunnions 390 of the roll carrying frame 392. The bolt 446 is arranged to turn relatively to the block 444 and the outer end of the bolt is threaded to receive a nut 452 arranged to engage the outer side of the arm 450 and to secure the block 444 against movement lengthwise of the arm 450 by clamping the arm 450 between-the nut 452 and a projection 454 on the outer side ofthe block 444. lVith the above described construction, as the head 382 is swung toward either side of the machine the segment 438 is caused to roll over the stationary rack bar 436, thus swinging the arm 440 about the stud Through the connections between the arms 440 and 450 the latter arm will also be swung and since this arm is pinned to the trunnion of the frame 392 which carries the roll R the frame will be swung about its trunnions and so as to tip the roll crosswise of the shoe. The amount of tipping movement to be thus imparted to the roll is determined by the adjustment of the block 444 in the groove of the arm 440 thereby changing the ratio between the amount of swinging adjustment of head 382 and the degree of tipping adjust-ment of the roll R. The construction is also such that the block 444 may be shifted upwardly in the groo e in the arm 440 until the belt 446 is coaxial with the stud 442 and when tne block is thus adjusted no rocking movement at all'will be imparted to the arm 450 when the head 382 is swung laterally and consequently no tipping of the roll R will take place. The ratio between the degree of swing of the last and the angle of pitch of the last bottom is ordinarily'the same for all sizes of lasts of a particular style and it is the same in both right lasts and left lasts. Accordingly when the block 444 has been adjusted in the grooved arm 440 to secure a desired radle 396 from one extreme position to the other,

may adjust the relasting roll for operation upon a left shoe or vice versa, and these changes of adjustment may be made without regard to the sizes of the-shoe to'be-opera'ted upon.

In Figs. 8, 9 and 12 the machine is shown as being provided with two supplementary foot treadles 460 and 484, the treadle 460 being connected with the mechanism for rotating the relastiug roll to seat the toe of a shoe upon a last and being operative to effect rotation of said roll independently of the cam which normally controls said mechanism, and the treadle 484 being connected with the mechanism for retracting the relasting roll from engagement with the work and being operative independently of the cam which normally controls said mechanism.

The treadle 466 pivotally mounted. upon the rod 90 upon which the cam lever 256 is fulcrumed and the treadle extended rearwardly of the rod 90 as indicated by dot-ted lines at 462 in Fig. 12. The mechanism associated with the treadle 460 may be operated by depression of the treadle to rotate the relastiug roll during any of the periods between successive stages of automatic operation ofthc machine. Also, if during the automatic operation of the machine the re istance offered by the shoe to the rotation of the relasting roll causes members of the friction clutch 220 to slip prematurely or if for any reason additional rearward movement of the shoe is desired, the treadle 460 may be depressed to in crease the compression of the spring tending to hold the clutch members together and thus to continue the rotation of the relasting roll so long as the treadle remains depressed. Thus,

. rotation of the relasting roll may be continued all ' under the control of the operator even after the members of the friction clutch have slipped and automatic driving of the roll has been terminated. In order that this may be accomplished the connections between the triction clutch 220 and the cam lever 256 have been modified to the following extent.

is shown in Figs. 12 and 13 the lower end ot the rod 264 extends through a block 464 which rests upon a collar 466 that is pinned to the shaft and supports the block against the action of the spring 268. Located within a central recess in the block 464 and mounted to turn upon a stud 468 carried by the block a pinion 470 and mounted in vertical s ideways in the block at opposite sides of the pinion are two rack bars 472 and 474, the teeth of which arranged to mesh with the teeth of the pinion, the arrangement being such that when either rack bar is moved the pinion will be caused to roll over the teeth of the other rack bar so as to raise or lower the block 464 and thus to increase or diminish the compression of the spring 268. The rack bar 472 connected by a link 47 6 with the cam lever 256 by means of which the friction clutch is automatically thrust in to drive the rel-ting roll. The rack bar 474 is connected by link 418 to the rearward extension 462 of the treadle 460. As shown in Fig. 12, a guide rod 480 15; secured at its lower end to the casing or frame 20 and extends upwardly through an aperture in the block 464.

In accordance with the normal operation of the machine as described in connection with Figs. 1 to 7, inclusive, the rotation of the relasting roll does not begin until the second stage in the cycle of operations. However, when. the 'machine is fitted with the auxiliary treadle 460 the cam 46 may be set as indicated in Fig. 8 so that the relasting roll will start to rotate just before the termination of the first stage in the cycle. The cam 46 may be provided with a depressed portion to cause the rotation of the relasting roll to stop at the termination of the first stage in the cycle. lVith this arrangement the operator may depress the treadle 460 during the pause between the first and second stages of the cycle of operations of the ma chine and he may continue the rotation of the relasting roll to the extent of completing the relasting of the toe if he desires at this time. In this way the completion of the toe seating operation will e entirely under the operators control, the amount of force which is effective to seat the shoe being determined by the operator.

The mechanism associated with the treadle 484 is best shown in Figs. 8 and 9. The treadle 484 fulcrumed upon a fixed pivot stud 486 and is connected by a rod 488 with the tail 490 of a pawl 492 arranged to co-operate with a series of ratchet teeth 494. The pawl 492 is located within a recess in a slide block 496 to which the pawl is pivoted, as shown at 498. The slide block 496, together with a bloclt 500 upon which the ratchet teeth are formed, is slidable in a vertical guideway formed within a lug 502 which projects inwardly from the rear wall of the casing 20. A spring 504 secured at its lower end to the tail of the pawl 492 and at its upper end to a fixed pin 506 serves to hold the pawl out of engagement with the ratchet teeth 494 and also tends to hold the slide block 496 as well as the treadle 484 in their upper positions. The block 500 upon which the ratchet teeth are formed pinned to the lower end of a rod 508 the upper end of which is rigidly secured to a nut 156 (corresponding to the nut 156 hereinbefore described). When the treadle 484 is depressed it will operate first to engage the pawl 492 with the ratchet teeth 494 and then to lower the sleeve 158 against the force of the spring; 162 and thus through the nut 156 and the links 152 to lower the relasting roll carrier 140 to retract the roll R from engagement with the shoe. Thus, by means of the treadle 484 and the associated mechanism just described the operator is enabled at any time during the automatic operation of the machine, as well as during the periods between successive stages of automatic operation, to relieve the shoe from the pressure of the relasting roll so that the shoe may be conven- 

